As you can see from the image there are 2 servers up one where "superjohan2000" is the admin of and he can manage it and another server where he is whitelisted and can join. The servers will hold 10 players.

And here is a little info on how multiplayer in 0.7.0 will work, according to droidgamers

"Initially all servers will be hosted through Mojang and anyone wanting to run their own server will have to pay Mojang a monthly fee. Administrators will have commands available through a custom GUI in-game instead of having to memorize actual commands to type. Multiplayer servers will be accessible through Wifi at first with 3G/4G connectivity coming in a future update. Also the initial roll out of multiplayer will feature a few servers as a bit of a soft beta launch. After everything is tested, multiplayer will fully launch in another update a couple of weeks after the beta launch.As for actually accessing a server, players will have to be whitelisted regardless of what server they are trying to connect to. Each server will have their own whitelist that players will need to apply to get on. If you're not on a whitelist, that server won't show up on the server list in-game. You do not need a Minecraft PC account to be able to play on Minecraft: Pocket Edition servers but if you do have one, that name will appear when you log into servers. There will be nameplates as well and most likely skins will be available also."
ARE YOU EXCITED?